Uwe Kleine-König b2eaa1170e pwm: Assume a disabled PWM to emit a constant inactive output ...

Some PWM hardwares (e.g. MC33XS2410) cannot implement a zero duty cycle
but can instead disable the hardware which also results in a constant
inactive output.

There are some checks (enabled with CONFIG_PWM_DEBUG) to help
implementing a driver without violating the normal rounding rules. Make
them less strict to let above described hardware pass without warning.

Reported-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20241103205215.GA509903@debian
Fixes: 3ad1f3a33286 ("pwm: Implement some checks for lowlevel drivers")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Reviewed-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Tested-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20241105153521.1001864-2-u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>

2024-11-07 12:03:39 +01:00

..

core.c

pwm: Assume a disabled PWM to emit a constant inactive output

2024-11-07 12:03:39 +01:00

Kconfig

pwm: adp5585: Add Analog Devices ADP5585 support

2024-08-01 14:09:28 +01:00

Makefile

pwm: adp5585: Add Analog Devices ADP5585 support

2024-08-01 14:09:28 +01:00

pwm-ab8500.c

pwm: ab8500: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:19 +01:00

pwm-adp5585.c

pwm: adp5585: Set OSC_EN bit to 1 when PWM state is enabled

2024-09-16 15:24:58 +02:00

pwm-apple.c

pwm: apple: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:19 +01:00

pwm-atmel-hlcdc.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-atmel-tcb.c

pwm: atmel-tcb: Use min() macro

2024-10-25 11:33:34 +02:00

pwm-atmel.c

pwm: atmel: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:19 +01:00

pwm-axi-pwmgen.c

pwm: axi-pwmgen: Enable FORCE_ALIGN by default

2024-10-25 11:42:36 +02:00

pwm-bcm2835.c

pwm: bcm2835: Drop open coded variant of devm_clk_rate_exclusive_get()

2024-04-30 18:57:08 +02:00

pwm-bcm-iproc.c

pwm: bcm-iproc: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:20 +01:00

pwm-bcm-kona.c

pwm: bcm-kona: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:20 +01:00

pwm-berlin.c

pwm: berlin: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:20 +01:00

pwm-brcmstb.c

pwm: brcmstb: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:20 +01:00

pwm-clk.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-clps711x.c

pwm: clps711x: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:21 +01:00

pwm-crc.c

pwm: crc: Make use of devm_pwmchip_alloc() function

2024-02-15 12:59:21 +01:00

pwm-cros-ec.c

pwm: cros-ec: Simplify device tree xlation

2024-07-10 17:52:47 +02:00

pwm-dwc-core.c

pwm: dwc: allow suspend/resume for 16 channels

2024-04-15 17:28:13 +02:00

pwm-dwc.c

pwm: dwc: allow suspend/resume for 16 channels

2024-04-15 17:28:13 +02:00

pwm-dwc.h

pwm: dwc: allow suspend/resume for 16 channels

2024-04-15 17:28:13 +02:00

pwm-ep93xx.c

pwm: ep93xx: drop legacy pinctrl

2024-09-12 14:33:11 +00:00

pwm-fsl-ftm.c

pwm: fsl-ftm: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:09 +01:00

pwm-gpio.c

pwm: Add GPIO PWM driver

2024-07-10 17:52:47 +02:00

pwm-hibvt.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-img.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-imx1.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-imx27.c

pwm: imx27: Use clk_bulk_*() API to simplify clock handling

2024-10-25 11:42:36 +02:00

pwm-imx-tpm.c

pwm: imx-tpm: Use correct MODULO value for EPWM mode

2024-10-25 11:29:17 +02:00

pwm-intel-lgm.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-iqs620a.c

pwm: iqs620a: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:10 +01:00

pwm-jz4740.c

pwm: jz4740: Another few conversions to regmap_{set,clear}_bits()

2024-07-10 17:52:46 +02:00

pwm-keembay.c

pwm: keembay: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:10 +01:00

pwm-lp3943.c

pwm: lp3943: Fix an incorrect type in lp3943_pwm_parse_dt()

2024-09-16 15:23:36 +02:00

pwm-lpc18xx-sct.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-lpc32xx.c

pwm: lpc32xx: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:11 +01:00

pwm-lpss-pci.c

pwm: lpss: drop redundant runtime PM handles

2024-07-10 17:53:51 +02:00

pwm-lpss-platform.c

pwm: lpss: use devm_pm_runtime_enable() helper

2024-07-10 17:53:51 +02:00

pwm-lpss.c

pwm: lpss-*: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:11 +01:00

pwm-lpss.h

pwm: lpss-*: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:11 +01:00

pwm-mediatek.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-meson.c

pwm: meson: Add support for Amlogic S4 PWM

2024-07-10 17:52:47 +02:00

pwm-microchip-core.c

pwm: microchip-core: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:12 +01:00

pwm-mtk-disp.c

pwm: mtk-disp: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:12 +01:00

pwm-mxs.c

pwm: mxs: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:12 +01:00

pwm-ntxec.c

pwm: ntxec: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:12 +01:00

pwm-omap-dmtimer.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-pca9685.c

pwm: pca9685: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-10 07:30:27 +02:00

pwm-pxa.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-raspberrypi-poe.c

pwm: raspberrypi-poe: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:13 +01:00

pwm-rcar.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-renesas-tpu.c

pwm: renesas-tpu: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:13 +01:00

pwm-rockchip.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-rz-mtu3.c

pwm: rz-mtu3: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:14 +01:00

pwm-samsung.c

of: remove internal arguments from of_property_for_each_u32()

2024-07-25 06:53:47 -05:00

pwm-sifive.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-sl28cpld.c

pwm: sl28cpld: Make use of devm_pwmchip_alloc() function

2024-02-19 11:04:15 +01:00

pwm-spear.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-sprd.c

pwm: sprd: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:10 +01:00

pwm-sti.c

pwm: sti: Prefer local variable over pointer dereference

2024-04-26 21:29:17 +02:00

pwm-stm32-lp.c

pwm: stm32-lp: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:25 +01:00

pwm-stm32.c

pwm: stm32: Fix error checking for a regmap_read() call

2024-10-04 19:03:12 +02:00

pwm-stmpe.c

pwm: stmpe: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:25 +01:00

pwm-sun4i.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-sunplus.c

pwm: sunplus: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:25 +01:00

pwm-tegra.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-tiecap.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-tiehrpwm.c

pwm: Switch back to struct platform_driver::remove()

2024-09-16 15:24:59 +02:00

pwm-twl-led.c

pwm: twl-led: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:27 +01:00

pwm-twl.c

pwm: twl: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:27 +01:00

pwm-visconti.c

pwm: add missing MODULE_DESCRIPTION() macros

2024-07-10 17:52:46 +02:00

pwm-vt8500.c

pwm: vt8500: Make use of devm_pwmchip_alloc() function

2024-02-22 14:39:27 +01:00

pwm-xilinx.c

pwm: xilinx: Simplify using devm_ functions

2024-07-10 17:53:52 +02:00